NTK590MHE6 SFP, CWDM 1490nm, LR-2 SMF 80km, OC-48 DDM, Purple Bale, Ciena OM6500 NTK590MHE6 Compatible
NTK591SB SFP, CWDM 1590nm, ZX SMF 80km, 1000Base DDM, Red Bale, Ciena/Nortel NTK591SB_80km Compatible
NTK596LH SFP, CWDM 1470nm, LR-2 SMF 80km, OC-48 DDM, Gray Bale, Ciena/Nortel OM6500 NTK596LH Compatible